US1132829A - Cycle-frame. - Google Patents

Description

L. H. COBB.

CYCLE PRAME.

APPLIqATIoN FILED JAN. 29, 1913.

1,132,829. Patented Mar. 23, 1915.'

nnirnn srnrns ramm* OFFICE.,

LYMAN H. COBB, or FITCHBURG, MAssAcHUsETTs; AssIGNon' 'ro MARY ELIZABETI-I JOHNSON, TBUSTEE, OEFITCHBURG, MAssAcHUsETTs. c i

CYCLE-FRAME. i

Application filed January 29, 1913.

To aZZ tclom it mag concern:

Be t known that I,- LYMAN H. COBB, a

citizen of the United States, residing at Fitchburg, in the County of Worcester and Commonwealth of Massachusetts, have in- Vented a new and useful Improvement in Cycle-Frames, of which the following, together with the accompanyingvdrawing, is a specification. v

My invention relates to cycle frames and more particularly to such frames as are used in connection with motorcycles. Many features of the invention are clearly applicable, however, to other forms of frames such, for instance,-as those used in a common form of bicycle. i

One object of the invention is to provide an improved form of frame including a mudguard whereby the mudguard itself will be resiliently and flexibly supported by other adjacent portions of the frame to which it is attached.

The invention involves novel features of` Construction not only in the mudguard itself, but also in other adjacent portions of the frame which coperate in supporting the mudguard in the desired manner.

F urther objects andadvantages will appear from the following description taken in connection with the accompanying drawing, in which Figure 1 is a side elevation of the forward portion of a motorcycle, the front wheel of 'which is provided with a mudguard supported in accordance with my invention; Fig. 2 is a plan VleW of the 'portion of the machine shown in Fg. 1; F ig. 3 s an enlarged View of a portion of the parts shown in Fig. 1, this figure being partially in section to show details of Construction; Fig. 4 is a sectional view on the line 4 of Fig. 3; F ig. 5 is a sectional view on the line 5 of F ig. 3; and F ig. 6 is a sectional View on the line 6 of Fig. 3.

Like reference-characters refer to similar parts in the different figures.

I have illustrated the principles of my in- Vention by showing one form thereof as applied to a common type of motorcycle, comprising a head 1, a backbone 2 and a front brace 3. Rotatably supported within the head 1 is a tube 4 to the lower end of which is Secured' a plate 4% The upper ends of the rear pair of tubes 5 and 6 of the front fork of the machine are Secured -to the rear Specification of Letters Patenti Patented Mar. 23, 1915.' I Serial no. 744840. i i

portion of this plate 4 At the forward corners of the plate 4 are the forwardly eX- tended and downwardly turned prongs 7 and 8 which are brazed or otherwise attached to a second pair of tubes 9 and 10. The tubes9 and 10 are rigidly attached at their lower ends to the tubes 5 and 6 respectively, and the upper ends of the tubes 9 and 10 are attached to a plate :11 which is Secured to the upper end of the tube 4 and which s provided with a clamping ring 12 for holding the handle bars 13. p

The rigidly united tubes 5 and 9 are pivotally connected at their lower ends with the rear end of a short bar 14, and the lower ends of the united tubes 6 and 10 are similarly connected with the rear end of a short bar 15, the forward ends ofthe bars 14 and 15 being rotatably monnted upon an axle 16 of the forward wheel 17 of the machine. A tube 18, of inverted U-shape,` extends from one end of the axle over the top of the forward wheel 17 to the other end'of the axlei 16, both extremities of this tube being also pivoted to the axle. Near the upper portion of the tube 18 isa cross bar 19 which joins the two sides of the tube 18 a short distance above the top of the wheel 17.

A spring 20, consisting of a series of leaf springs placed one above the other,`is attached to the lower face of the plate 4 by a staple 21 and a pair of bolts 22. The spring. 20 is tapered somewhat being narrower at its forward end than at its rear end. The several leaves of the spring 20'are 'all of substantially the same length so that the 'mudguard may be properly attached to' and supported by the narrow forward end thereof. The forwardend of this spring 20 is curved downwardly and extends into the opening formed between the cross bar 19 andthe upper bent portion of the tube 18 and rests upon the central portion of this cross bar 19. Immediately above this cross bar 19 is a small opening 23 throughthespring 20 to accommodate a short post 24 rigidlyfixed to the cross bar 19.` The opening 23 in the spring 20 is elongated or enlarged longitudinally of the spring so that the forward ends of the individual leaves comprising the 'As shown in F ig. 5, the post 24 is providednear its upper end with a shoulder 25,

the forwardly extending bent plate or bar 26 having its rear end secured against this shoulder 25 by a nut 27. Between the lower face of the rear end of the plate 26 and the adjacent upper surface of the spring 20 is interposed a Washer 28 of leather or similar material, this Washer 28 surrounding the post 2% so as to be held in place thereby. '1 he shoulder 25 on the post 2 1 prevents the rear end of the plate 26 and the washer 28 from pressing against the upper surface of the spring 20 sufiieiently to cause the individual leaves of the spring to bind when the spring is distorted.

The forward portion of the plate 26 is bent downwardly and then forwardly to support the forward portion of the mudguard 29. Between the forward end of the plate 26 and the adjacent portion of the upper surface of the nudguard 29 is interposed a Washer 30, and extending upwardly through alined openings in the mudguard 29, the Washer 30 and the forward end of the plate 26 is a bolt 31, provided with a. head at its lower end and having its upper end threaded and provided with a shoulder 32. A spiral spring 33 surrounding the bolt 31 is held in place by an inverted cup 3-1 screwed onto the threaded upper end of the bolt 31 against the shoulder This in- Verted cup incloses the spring 33 in order to protect it from dust and other foreign matter and from mechanical injury. The upper end of the cup is formed into the shape of a nut to facilitate its removal and replacement. While this nut is preferably integral with the cup, the two parts may be formed separately if desired. The lower edge of the cup 31 does not quite reach the upper face of the bar 26 and the bolt 31 is fitted so as to slide freely in the opening therefor in the bar 26, a yielding and resilient connection between the muuguard and its support being thus provided.

The nudguard 29 is divided into a forward portion and a rear portion, the two portions meeting at the staple 21 and the adjacent or neeting ends of the two portions of the mudguard being supported by this staple. The forward end 35 of the rear portion of the mudguard is sufficiently narrow to lie between the two legs of the staple so as to be held firmly in place between the horizontal portion of the staple and the under surface of the spring 20. This forward end of the rear portion of the mudguard is offset upwardly so as to provide a space between the spring 20 and the remainder of this portion of the inudguard. This prevents friction and makes the parts easier to clean. The forward portion of the mudguard 29 is provided at its rear end with a narrow tongue 36, formed either integrally or attached to this portion of the mudguard by rivets as shown in Fg. 3. The central portion of the upper surface of thehorizonthe forward portion of the mudguard. The

recess which reeeives the tongue 36 is, of course, not wide enough to reach either edge of the forward end 35 of the rear portion of the mudguard. A; short rearward extension 37 is provided at each side of the tongue 36 to overlap the adjacent end of the rear portion of the nudguard and so to close the space between the two portions thereof. The other end of the rear portion of the mudguard is supported by rods 38, each attached at one end to an edge of the mudguard and at its other end to a member 39 pivoted to the front fork of the machine.

While I have illustrated the principles of my invention by showing and describing the details of one form thereof, T do not wish to be' limited to such details as it is obvious that certain changes may be made within the scope of the appended claims without departing from the spirit of the invention; but

l Vliil) I claim as new and desire to secure by Letters Patent is:

1. In a cycle frame, a head, a member rotatably mounted in the head and having a yielding connection with the axle of a wheel to permit said member to move toward and from the aXle, a leaf spring having one end connected to said member, the leaves of the spring being of substantially the same length, and means connecting the other end of the spring with said axle.

2. In a cycle frame, a head, a member rotatably mounted in the head and having a yielding connection with the axle of a wheel to permit said member to move toward and from the aXle, a tapered leaf spring having one end 'connected to said member, the leaves of the spring being of substantially the same length, and means connecting the other end of the spring with said axle.,

3. In a cycle frame, a support having a yielding connection with the axle of a wheel to permit the support to move toward and from the axle, a leaf spring carried by the support, the leaves of the spring being of substantially the same length and the spring having an elongated opening through one end, a post through said opening, and means supporting the post from said axle.

4. In a cycle frame, a support having a yielding connection with the axle of a wheel to pernit the support to move toward and from the axle, a leaf spring carried by the support, the leaves of the spring being of substantially the same length and the spring having an elongated opening through one end, a post through said opening, means supporting the post from said' axle, and mudsupporting the post from said axle, and guard supporting means carried by the post. 5. In a cycle frame, a support having a yielding connection with the xle of a wheel to permit the support to move toward and from the axle, a spring carried by the support, the spring having an opening through one end, a post through said opening, means ost. p .Dated this 24th day of January 1913.

LYMAN H. COBB. Witnesses;

N ELLIEWHALEN, PENELOPE COMBERBACHQ copies ot this patent may be obfiained for five cents each, by addressing the "Commissloner ot Patents, e

' Washington, D. c."

mudguard' supporting means carried by the 10

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